A rigid metallic item, generally circular. It may be formed of segmented arcs. It is designed to prevent leakage of air in an engine, gas turbine, aircraft. It may be of various cross-sectional shapes. It may have mounting facilities. It may act as a spacer but its primary function is as an air seal.
Classification: Parts of gas turbine aircraft engines, other than for use in civil aircraft
NSN 5920-00-920-7956
NSN 6645-01-076-4655
NSN 5945-01-455-9878
NSN 4140-01-364-1684
NSN 5998-01-414-3805
NSN 5905-01-091-6898
NSN 5930-00-031-3705
NSN 5915-01-648-4865
NSN 5905-01-502-4561
NSN 5975-01-395-4105
NSN 6650-01-633-9147
NSN 6620-01-614-3591